Corrections and clarifications

• An article about the challenges facing the Royal Mail as it prepares for privatisation said the Treasury had taken on its £37bn pension deficit. That figure was for pension liabilities, which were balanced against £28.5bn of assets, leaving a deficit of about £8.5bn (Postal rivals eye up rich pickings in leafy suburbs, 14 May, page 21).

• A column about Spencer Perceval, the only British prime minister to have been assassinated, asked why no monument to him had been erected. Westminster Abbey does have one, as a book review elsewhere in the same day's paper pointed out, although it is "high on a wall … in anything but pride of place". There is no monument inside the Commons, but the council chambers in Northampton, his parliamentary constituency, have an imposing statue. All Saints church in Ealing was built as a memorial to Perceval, with money bequeathed by his daughter, on the site of the house where he lived at the time of his death (No, we don't all think like you, 12 May, page 20).

• A Channel 4 programme mentioned in the Open Door column featured a grandmother who climbed the Old Man of Stoer, a sea stack in the Scottish Highlands, not the Old Man of Storr on the Isle of Skye (7 May, page 25).